CN110539015A - A special drilling machine with multi-combination drill bits and its working method - Google Patents

Abstract

The invention relates to a special drilling machine with multi-combination drill bits and its working method. A multi-axis drilling and tapping mechanism capable of laterally reciprocating movement is installed on the crossbeam of the frame. The multi-axis drilling and tapping mechanism includes a base on which at least one set of spindle groups is installed, and each set of spindle groups has at least two The main shafts are arranged at intervals along the horizontal direction and can be raised and lowered. The lower end of the main shafts is equipped with a chuck for clamping drill bits or taps. Each group of main shafts is equipped with an AC motor to drive the main shaft to rotate. The base is also equipped with Corresponding to each main shaft one by one, the first servo motor used to drive the main shaft up and down. The special drilling machine with multi-combination drills has simple structure, reasonable design, convenient installation and maintenance, reduces the frequency of stopping and changing tools, is convenient to use, saves processing time, and greatly improves processing efficiency and processing accuracy.

Description

A special drilling machine with multi-combination drill bits and its working method

technical field

The invention relates to a special drilling machine with multi-combination drill bits and its working method.

Background technique

In the machinery industry, single-piece or small-batch production parts also occupy a large proportion. At the same time, due to the increasingly fierce competitive market atmosphere, each enterprise must meet the changing needs of the market in order to survive in such an environment. Traditional machine tools The shortcomings of the equipment are exposed. For example, the processing of the holes and threads of the dial in the textile equipment uses a traditional single-axis drilling machine. In this way, it is necessary to change the tool frequently according to the size of the thread on the dial. Therefore, for the processing of the dial of the textile equipment As far as the existing drilling machine equipment has the following problems: (1) The processing efficiency and precision are low, and frequent tool changes not only waste processing time, install corresponding processing tools according to the current processing needs, and then change the tool for the next step after completing a process Processing procedures, the traditional drilling machine has low processing efficiency and easily leads to unqualified processing quality; (2) The degree of automation is low, and the labor intensity is increased through artificial tool changes, which is inconsistent with modern production concepts; (3) The structure is complex, inconvenient for maintenance and operate.

Nowadays, combined special drilling machines have provided various parts processing for all walks of life, which can meet the needs of drilling, reaming and tapping. Although the existing combined drilling machines have achieved high efficiency and standardization, there are still complex structures, inconvenient installation and maintenance. , high cost and other issues.

Contents of the invention

In view of this, the purpose of the present invention is to provide a special drilling machine with multi-combination drill bits and its working method which is simple in structure, easy to use and high in processing efficiency.

The present invention is realized by the following scheme: a special drilling machine with multi-combination drill bits, including a base, the upper side of the base is provided with a rotary table that can move back and forth and can rotate, a gantry frame is installed on the base, and the gantry A multi-axis drilling and tapping mechanism capable of laterally reciprocating movement is installed on the crossbeam of the frame. The multi-axis drilling and tapping mechanism includes a base on which at least one set of spindle groups is installed, and each set of spindle groups has at least two The main shafts are arranged at intervals along the horizontal direction and can be raised and lowered. The lower end of the main shafts is equipped with a chuck for clamping drill bits or taps. Each group of main shafts is equipped with an AC motor to drive the main shaft to rotate. The machine base is also equipped with Corresponding to each main shaft one by one, the first servo motor used to drive the main shaft up and down.

Further, the upper half of the main shaft is a spline shaft part, and the spline shaft part of the main shaft is set in a sleeve and can slide up and down relative to it. A spline hole; a first screw rod parallel to it is installed on the side of the main shaft, a sleeve that rotates with it is covered on the main shaft, and a nut seat that matches the first screw rod is fixedly connected to the side of the sleeve , the upper end of the first screw rod is connected to the main shaft of the first servo motor through transmission.

Further, the AC motor is installed at the end of the machine base, and the bushing on the upper end of the main shaft of each set of main shaft groups closest to the corresponding AC motor is connected to the AC motor through a variable speed transmission mechanism. The adjacent shaft sleeves on the same main shaft group The shaft sleeves at the upper ends of the two main shafts are connected through transmission belts.

Further, the variable speed transmission mechanism includes a driving pulley installed on the main shaft of the AC motor, a driven pulley mounted on the bushing, and a transmission belt connecting the driving pulley and the driven pulley; the Both the driving pulley and the driven pulley are composed of movable belt pulleys and fixed belt pulleys with variable spacing to match the clamping transmission belt. The opposite side of the movable belt pulley and the fixed belt pulley is a tapered surface.

Further, the side of the driving pulley away from the AC motor is equipped with a stepping motor for driving the movable pulley of the driving pulley to move up and down, and a second screw rod is coaxially connected to the main shaft of the stepping motor. The movable pulley disc of the pulley is fixedly connected to one end of the stepper motor with a connecting plate, and the connecting plate is provided with a threaded hole matched with the second screw mandrel, and a guide rod parallel to it is installed on the side of the second screw mandrel, so The connecting plate is provided with a guide hole slidingly matched with the guide rod.

Further, the movable pulley of the driven pulley is located on the upper side of the fixed pulley, and the upper end of the sleeve is equipped with a photoelectric encoder for sensing the rotation speed of the sleeve. The spring above the movable pulley of the driven pulley is used to push the movable pulley downward.

Further, the machine base has two sets of main shaft groups and two AC motors respectively used to drive the two sets of main shaft groups. The two AC motors are respectively installed at the left and right ends of the machine base. A drill bit is installed, and a screw tap is installed at the lower end of the main shaft of the other group of main shaft groups, and all the main shafts on the two groups of main shaft groups are lined up horizontally.

Further, the end of the beam of the gantry is equipped with a second servo motor for driving the machine base to move laterally, and the second servo motor drives the machine base to move laterally through a screw nut mechanism, and the beam of the gantry is installed with a The horizontal guide rail for the lateral movement of the machine base; the third servo motor for driving the rotary table to move forward and backward is installed on the base, and the third servo motor drives the rotary table to move forward and backward through the screw nut mechanism. Longitudinal rails guided by the forward and backward movement of the rotary table.

Another technical solution of the present invention: a working method of a special drilling machine with multi-combination drills as described above, according to the diameter of the hole to be processed on the workpiece, the tools with different diameters and specifications that need to be used are clamped on the multi-axis On the main shaft of the drilling and tapping mechanism; the workpiece is clamped on the rotary table, and then the rotary table moves longitudinally to the specified position and rotates to the specified angle; when the tool on a certain spindle needs to be processed, it will The AC motor corresponding to the group will drive all the spindles of the spindle group to rotate, and the first servo motor corresponding to the spindle will drive the spindle to go down to complete the machining of the hole; Move, you can choose different tools to process holes at different positions on the workpiece.

Compared with the prior art, the present invention has the following beneficial effects: the special drilling machine with multi-combination drills has simple structure, reasonable design, convenient installation and maintenance, low manufacturing cost, and can realize the functions of processing various apertures and integrating specialization , Reduce the frequency of tool change during shutdown, easy to use, save processing time, greatly improve processing efficiency, can efficiently and accurately adjust the spindle speed according to the workpiece processing requirements, and improve processing accuracy.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings.

Description of drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

Fig. 2 is a perspective view of a multi-axis drilling and tapping mechanism in an embodiment of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the multi-axis drilling and tapping mechanism in the embodiment of the present invention;

Fig. 4 is a perspective view of a variable speed transmission mechanism in an embodiment of the present invention;

Fig. 5 is the front view of the variable speed transmission mechanism in the embodiment of the present invention;

Fig. 6 is a schematic diagram of the connection between the sleeve and the first screw mandrel in the embodiment of the present invention;

Fig. 7 is a schematic diagram of the connection between the driving pulley and the driven pulley of the variable speed transmission mechanism in the embodiment of the present invention;

Fig. 8 is a perspective view of a collecting tank in an embodiment of the present invention;

Explanation of symbols in the figure: 100-multi-axis drilling and tapping mechanism, 110-spindle, 111-spline shaft, 112-drill, 113-tap, 120-AC motor, 130-the first servo motor, 131-the first screw rod , 140-shaft sleeve, 150-sleeve, 151-nut seat, 160-variable speed transmission mechanism, 161-transmission belt, 162-movable belt wheel, 163-fixed belt wheel, 164-stepper motor, 165- The second screw, 166-connecting plate, 167-guide rod, 168-photoelectric encoder, 169-spring, 170-spindle seat, 180-base, 200-base, 210-gantry, 211-second servo motor , 300-rotary table, 400-collection tank, 410-casters, 420-coolant pump.

Detailed ways

As shown in Figures 1 to 8, a special drilling machine with multi-combination drills includes a base 200, the upper side of the base 200 is provided with a rotary table 300 that can move back and forth and can rotate, and the rotary table is equipped with A fixture for clamping workpieces, a gantry 210 is installed on the base 200, and a multi-axis drilling and tapping mechanism 100 capable of laterally reciprocating movement is installed on the beam of the gantry, and the multi-axis drilling and tapping mechanism includes a machine base 180. At least one set of spindle groups is installed on the machine base, and each set of spindle groups has at least two horizontally spaced and liftable spindles. The lower end of the spindles is equipped with a chuck for clamping drill bits or taps. Each set of spindles The group is equipped with an AC motor 120 for driving its main shaft to rotate, and the first servo motor 130 corresponding to each main shaft is installed on the base 180 to drive the main shaft to go up and down. The number of main shaft groups can be determined according to It needs to be set, generally the number of groups is 1~3 groups, and the positions between groups can be arranged horizontally or vertically; by setting multiple spindles, drills or taps of different diameters can be installed on the spindles to make it possible to complete Hole processing with different diameters; the special drilling machine of the present invention is especially suitable for hole processing on rotary workpieces, and can quickly and accurately locate the desired processing hole position through the rotation of the rotary table and the lateral movement of the multi-axis drilling and tapping mechanism .

In this embodiment, since the drill bit and the tap have different requirements on the rotating speed during operation, in order to make the drilling machine have the functions of drilling and tapping at the same time, and there is no need to change the tool halfway, there are two sets of spindles on the base 180 The two AC motors are respectively used to drive the two sets of spindle groups. The two AC motors are respectively installed at the left and right ends of the machine base. The lower end of the spindle of one group of spindle groups is equipped with a drill bit, the number of spindles is 3, and the other group The lower end of the main shaft of the main shaft group is equipped with a screw tap, the number of the main shafts is 2, and all the main shafts on the two groups of main shaft groups are arranged horizontally.

In this embodiment, the upper half of the main shaft 110 is a spline shaft part 111, and the spline shaft part of the main shaft 110 is set in a shaft sleeve 140 and can slide up and down relative to it. A spline hole matched with the spline shaft part of the main shaft; a first screw 131 parallel to it is installed on the side of the main shaft 110, and a sleeve 150 that rotates with it is covered on the main shaft, and there is no gap between the sleeve and the main shaft. Axial relative movement will occur, and the side of the sleeve 150 is fixedly connected with a nut seat 151 matched with the first screw rod, and the sleeve 150 and the first screw rod 131 are installed in a main shaft seat 170, the The sleeve can slide up and down relative to the main shaft seat, which is installed on the underside of the base 180, and the upper end of the first screw mandrel 131 is connected to the main shaft of the first servo motor 130 through a transmission belt. Belt pulleys are installed on the main shaft and the upper end of the first screw mandrel. When a certain main shaft needs to be processed, the first servo motor 130 corresponding to the main shaft will drive the sleeve to move downward through the first screw mandrel 131, thereby driving the main shaft to move downward. The hole position is processed by moving down; since the upper end of the main shaft is matched with the spline hole of the shaft sleeve through the spline shaft, the power transmission can be guaranteed while the main shaft moves up and down.

In this embodiment, the AC motor 120 is installed at the end of the machine base 180, and the bushing 140 on the upper end of the main shaft 110 of each group of spindle groups closest to the corresponding AC motor is connected to the AC motor through a variable speed transmission mechanism 160. The shaft sleeves at the upper ends of the adjacent two main shafts on the same main shaft group are connected by transmission belts, and the shaft sleeves at the upper ends of each main shaft are equipped with pulleys for installing the transmission belts.

In this embodiment, the variable speed transmission mechanism 160 includes a driving pulley mounted on the main shaft of the AC motor, a driven pulley mounted on the shaft sleeve, and a transmission connecting the driving pulley and the driven pulley. Belt 161; the driving pulley and the driven pulley are all made up of a movable belt pulley 162 and a fixed belt pulley 163 in order to cooperate with the clamping drive belt with variable spacing, and the movable belt pulley 162 and the fixed belt pulley 163 opposite sides are conical surfaces, because movable belt reel 162 and fixed belt reel 163 clamp transmission belt one side to be conical surface, so the spacing between movable belt reel 162 and fixed belt reel 163 becomes little, movable belt The position clamping the drive belt on the wheel disc 162 and the fixed belt wheel disc 163 will expand outwards, so that the diameter of the arc portion of the drive belt will become larger, otherwise, between the movable belt wheel disc 162 and the fixed belt wheel disc 163 When the distance between them becomes larger, the position where the drive belt is clamped on the movable pulley disc 162 and the fixed pulley disc 163 will shrink inwardly, so that the diameter of the arc portion of the drive belt will become smaller, thus by controlling the movable belt The spacing between the wheel disc 162 and the fixed belt wheel disc 163 just can realize the adjustment of transmission ratio; The distance between the movable pulley and the fixed pulley of the pulley is a working method of ebb and flow, that is, the distance between the active pulley of the driving pulley and the fixed pulley becomes smaller, and the movable pulley of the driven pulley becomes smaller. The distance between the pulley and the fixed pulley becomes larger correspondingly, and the transmission ratio becomes larger; when the distance between the movable pulley of the driving pulley and the fixed pulley becomes larger, the movable pulley of the driven pulley and the fixed pulley The distance between the roulettes becomes smaller correspondingly, and the transmission ratio becomes smaller.

In this embodiment, the fixed pulley disc of the driving pulley rotates synchronously with the main shaft of the AC motor and its axial position is fixed, while the movable pulley disc of the driving pulley also rotates synchronously with the main shaft of the AC motor and its axial position can be adjusted. Adjustment, the side of the driving pulley away from the AC motor 120 is equipped with a stepper motor 164 for driving the movable pulley disc of the driving pulley to move up and down, and the main shaft of the stepper motor 164 is coaxially connected with a second screw rod 165, the movable pulley disc of the driving pulley is fixedly connected to one end of the stepper motor with a connecting plate 166, and the connecting plate is provided with a threaded hole matched with the second screw mandrel, and a second screw mandrel parallel to it is installed on the side of the second screw mandrel. Guide rod 167, the described connecting plate is provided with the guide hole that slides with described guide rod; Drive the movable pulley of driving pulley by stepping motor 164 to move up and down to realize the difference between the movable pulley and the fixed pulley. Adjust the distance between them.

In this embodiment, the main shaft end of the AC motor 120 is set upwards, the stepping motor 164 is positioned above the driving pulley of the variable speed transmission mechanism 160, and the movable pulley of the driving pulley is positioned on the upper side of the fixed pulley. The upper end of the pulley disc has an upwardly extending casing, the connecting plate is fixedly connected to the upper end of the casing, and the second screw rod extends into the casing; and in the specific implementation process, the main shaft end of the AC motor 120 can also Set downwards, the movable pulley disc of the driving pulley is positioned at the lower side of the fixed pulley, and the stepper motor 164 is positioned below the driving pulley of the variable speed transmission mechanism 160 .

In this embodiment, the movable pulley disc of the driven pulley is located on the upper side of the fixed pulley disc, and a photoelectric encoder 168 is installed on the upper end of the sleeve to sense the rotational speed of the sleeve, and the photoelectric encoder can realize real-time The rotational speed of the main shaft is detected; a spring 169 (not shown in Fig. 4 ), which is located above the active pulley disc of the driven pulley and used to push the active pulley disc downward, is also covered on the shaft sleeve. The function of 169 can not only automatically adjust the tightness of the transmission belt, but also realize the self-adaptive adjustment of the distance between the movable pulley and the fixed pulley of the driven pulley. Under the cooperative action, the distance between the movable pulley and the fixed pulley of the driving pulley becomes larger or smaller, and the distance between the movable pulley and the fixed pulley of the driven pulley becomes smaller or larger accordingly. , so that the diameter of the arc section at both ends of the transmission belt changes, and then the adjustment of the transmission ratio is completed, and the stepless speed change is realized.

In this embodiment, the end of the beam of the gantry frame is equipped with a second servo motor 211 for driving the machine base to move laterally, and the second servo motor 211 drives the machine base to move laterally through a screw nut mechanism. A transverse guide rail (not shown in the figure) is installed on the beam to guide the lateral movement of the machine base; a third servo motor (not shown in the figure) for driving the rotary table to move forward and backward is installed on the base, and the third servo The motor drives the rotary table to move back and forth through the screw nut mechanism, and a longitudinal guide rail (not shown in the figure) for guiding the rotary table to move forward and backward is installed on the base; the specific structure of the rotary table belongs to the prior art, and here Do not elaborate.

In this embodiment, the base is provided with a chip discharge port located below the rotary table, a collection tank 400 located directly below the chip discharge tank is provided under the base, and casters 410 are installed at the bottom of the collection tank. A coolant pump 420 is also installed on the collection tank. The metal chips produced by the drilling machine fall into the collection tank through the chip discharge port, and the coolant used during processing also flows into the collection tank through the chip discharge port. In the middle, and through the coolant pump to achieve recycling, the coolant in the collection tank passes through the filter screen to isolate metal filings and then enters the coolant pump.

The present invention takes the gantry frame, the base, the rotary table and the multi-axis drilling and tapping mechanism as the main body, and has simple structure, convenient installation and maintenance, and low cost. Specialize in integrated functions to improve efficiency. The AC motor in the multi-axis drilling mechanism and the corresponding spindle are connected by a belt drive to realize stepless speed change, which can efficiently and accurately adjust the spindle speed according to the processing requirements of the workpiece.

A working method of a special drilling machine with multiple combined drills as described above, according to the diameter of the hole to be processed on the workpiece, the tools (ie drills or taps) with different diameters to be used are clamped on the multi-axis drill on the spindle of the tapping mechanism; the workpiece is clamped on the rotary table, and then the rotary table is moved longitudinally to the specified position and rotated to the specified angle; The corresponding AC motor drives all the spindles of the spindle group to rotate, and the first servo motor corresponding to the spindle drives the spindle to go down to complete the machining of the hole; through the longitudinal movement and rotation of the rotary table and the lateral movement of the multi-axis drilling and tapping mechanism , you can choose different tools to process holes at different positions on the workpiece; in the process of machining, it is carried out in the order of the spindle group, that is, first complete the processing of all the tools on the same spindle group, and then switch to the next spindle group, so that It can improve efficiency and can effectively save electric energy.

Unless otherwise stated in any technical solution disclosed in the present invention, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred numerical range is only Among the many practicable numerical values, the technical effect is relatively obvious or representative. Since there are too many numerical values to list exhaustively, the present invention only discloses some numerical values to illustrate the technical solution of the present invention, and the numerical values listed above should not constitute limitations on the protection scope of the present invention.

If the present invention discloses or relates to parts or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, using bolts or screws), or it can also be understood as: Non-detachable fixed connection (such as riveting, welding), of course, the mutual fixed connection can also be replaced by an integrated structure (such as manufactured by integral forming by casting process) (except that the integral forming process cannot be used obviously).

In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in the present invention to indicate positional relationships or shapes include states or shapes that are similar, similar or close to them.

Any component provided by the present invention can be assembled from multiple individual components, or can be a single component manufactured by integral forming process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.

Claims (9)

1. A special drilling machine with multi-combination drill bits, characterized in that: it includes a base, the upper side of the base is provided with a rotary table that can move back and forth and can rotate, a gantry is installed on the base, and the gantry A multi-axis drilling and tapping mechanism capable of laterally reciprocating movement is mounted on the crossbeam, and the multi-axis drilling and tapping mechanism includes a base on which at least one set of spindle groups is installed, and each set of spindle groups has at least two along the The main shafts are horizontally arranged at intervals and can be lifted. The lower end of the main shaft is equipped with a chuck for clamping drill bits or taps. Each group of main shafts is equipped with an AC motor to drive the main shaft to rotate. The base is also equipped with a Each main shaft corresponds to the first servo motor for driving the main shaft up and down. 2. The special drilling machine with multi-combination drills according to claim 1, characterized in that: the upper half of the main shaft is a spline shaft, and the spline shaft of the main shaft is sleeved in a sleeve and can be moved up and down relative to it Sliding, the inside of the sleeve is provided with a spline hole that matches the spline shaft of the main shaft; a first screw rod parallel to it is installed on the side of the main shaft, and a sleeve that rotates with it is covered on the main shaft. The side part of the sleeve is fixedly connected with a nut seat matched with the first screw rod, and the upper end of the first screw rod is connected to the main shaft of the first servo motor through transmission. 3. The special drilling machine with multi-combination drills according to claim 2, characterized in that: the AC motor is installed at the end of the base, and the bushing on the upper end of the main shaft closest to the corresponding AC motor on each group of spindle groups is connected with the AC motor. The motors are connected through a variable speed transmission mechanism, and the shaft sleeves at the upper ends of two adjacent main shafts on the same main shaft group are connected through a transmission belt. 4. The special drilling machine with multi-combination drill bits according to claim 3, characterized in that: the variable speed transmission mechanism includes a driving pulley installed on the main shaft of the AC motor, a driven pulley installed on the shaft sleeve A pulley and a transmission belt connecting the driving pulley and the driven pulley; the driving pulley and the driven pulley are both composed of movable pulley discs and fixed pulley discs with variable spacing to cooperate with the clamping drive belt , the opposite side of the movable pulley and the fixed pulley is a tapered surface. 5. The special drilling machine with multi-combination drill bits according to claim 4, characterized in that: the side of the driving pulley away from the AC motor is equipped with a stepping motor for driving the movable pulley disc of the driving pulley to move up and down, The main shaft of the stepping motor is coaxially connected with a second screw mandrel, and the movable pulley disc of the driving pulley is fixedly connected to one end of the stepping motor with a connecting plate, and the connecting plate is provided with a joint that matches the second screw mandrel. A threaded hole, a guide rod parallel to it is installed on the side of the second screw rod, and a guide hole slidingly matched with the guide rod is opened on the connecting plate. 6. The special drilling machine with multi-combination drill bits according to claim 5, characterized in that: the movable pulley disk of the driven pulley is located on the upper side of the fixed pulley disk, and the upper end of the bushing is installed with a A photoelectric encoder for the rotating speed of the shaft sleeve, and the shaft sleeve is covered with a spring located above the movable pulley disc of the driven pulley to push the movable pulley disc downward. 7. The special drilling machine with multi-combination drill bits according to claim 1, characterized in that: the base has two sets of main shaft groups and two AC motors respectively used to drive the two groups of main shaft groups, and the two AC motors are respectively installed At the left and right ends of the machine base, a drill bit is installed on the lower end of the main shaft of one group of main shaft groups, and a tap is installed on the lower end of the main shaft of the other group of main shaft groups. All the main shafts on the two groups of main shaft groups are arranged horizontally. 8. The special drilling machine with multi-combination drill bits according to claim 1 or 7, characterized in that: the beam end of the gantry frame is equipped with a second servo motor for driving the machine base to move laterally, and the second servo motor passes through The screw nut mechanism drives the machine base to move laterally, and the crossbeam of the gantry frame is equipped with a transverse guide rail for guiding the machine base to move laterally; the base is equipped with a third servo motor for driving the rotary table to move forward and backward. The servo motor drives the rotary table to move back and forth through the screw nut mechanism, and a longitudinal guide rail for guiding the rotary table to move forward and backward is installed on the base. 9. A working method of a special drilling machine with multi-combination drill bits as claimed in claim 1, characterized in that: according to the diameter of the hole to be processed on the workpiece, the cutters of different diameter specifications that need to be used are clamped in the On the main shaft of the multi-axis drilling and tapping mechanism; the workpiece is clamped on the rotary table, and then the rotary table moves longitudinally to the specified position and rotates to the specified angle; The AC motor corresponding to the spindle group drives all the spindles of the spindle group to rotate, and the first servo motor corresponding to the spindle drives the spindle to go down to complete the machining of the hole; through the longitudinal movement and rotation of the rotary table and the multi-axis drilling mechanism Lateral movement, different tools can be selected to process holes at different positions on the workpiece.